WWII U.S. Navy SA-9A/APG-4 Aircraft Altitude Compensation Switch

WWII U.S. Navy SA-9A/APG-4 Aircraft Altitude Compensation Switch

Original SA-9A/APG-4 panel control for the AN/APG-4 airborne radar system. The face has power-off and altitude settings from 50 to 300 feet, plus a numbered range-lead adjustment. Its rear identification plate and electrical connector are present. Shows scratches, discoloration, and storage wear. Untested; sold as a collectible or restoration component.